Future Make Polyes Q1 Ink Package (5 Colors)(UV Light) (Premium) Premium Ink Package contains 5 small boxes of functional ink refills: 2 Glow-in-dark2 Color-changing1 Aromatic. Multi-functional inks are sure to be more attractive than the traditional ABS/PLA filament. Transparent, colorful, aromatic and completely cool, nontoxic that can be drawn on skin so on and so forth. POLYES R&D team has made different types of inks to satisfy different creation needs and it will be a great of fun for you to create your own style 3D world.